The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 19, 1993
Filed:
Mar. 13, 1992
John D Maltby, San Diego, CA (US);
Leonard J Martini, San Diego, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An injector assembly is provided for use with a high heat, high pressure bustion chamber which utilizes a highly corrosive fuel. The injector assembly includes a ceramic injector which has an annular ceramic flange. A metallic retaining apparatus is provided which includes a pair of retainer plates and a tightening device. In a preferred embodiment one of the retainer plates is a retainer ring. With this arrangement the ceramic flange is clamped between the retainer ring and the retainer plate by the tightening device. The retainer ring is provided with an annular groove. An annular spring is disposed within the groove in engagement with the ceramic flange. Because of the different coefficients of expansion the metal of the retaining apparatus will expand away from the ceramic flange when the combustion chamber is operated. When this occurs the annular spring will expand to maintain a high integrity seal between the injector assembly and the combustion chamber. Also, the injector is provided with an annular cavity which is structurally supported and cooled therein by a coolant.